Young woman fighting for life after head-on Sunbury crash

A young woman suffered life-threatening injuries when her car collided head-on with a ute north-west of Melbourne yesterday.

The woman, aged in her 20s, was driving a blue Mazda station wagon west on Dalrymple Road in Sunbury about 5.15pm, when a black Holden ute travelling in the opposite direction appears to have crossed into her lane and crashed into the wagon.

She was airlifted to hospital with life-threatening injuries.

A car and a ute collided head-on in Sunbury. (9NEWS)

The ute driver was also taken to hospital, with minor injuries.

There were no passengers in either vehicle.

Detectives from the Major Collision Investigation Unit are investigating.

Anyone with information is urged to contact Crime Stoppers on 1800 333 000.